Bump System.Reactive from 6.0.0 to 6.0.1

Bumps [System.Reactive](https://github.com/dotnet/reactive) from 6.0.0 to 6.0.1.
- [Release notes](https://github.com/dotnet/reactive/releases)
- [Commits](https://github.com/dotnet/reactive/commits/ixnet-v6.0.1)

---
updated-dependencies:
- dependency-name: System.Reactive
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Shadowsocks.WPF/Shadowsocks.WPF.csproj

@@ -58,7 +58,7 @@
     <PackageReference Include="ReactiveUI.WPF" Version="19.4.1" />
     <PackageReference Include="Splat.NLog" Version="15.2.22" />
     <PackageReference Include="System.CommandLine" Version="2.0.0-beta4.24528.1" />
-    <PackageReference Include="System.Reactive" Version="6.0.0" />
+    <PackageReference Include="System.Reactive" Version="6.0.1" />
     <PackageReference Include="WPFLocalizeExtension" Version="3.10.0" />
     <PackageReference Include="ZXing.Net" Version="0.16.9" />
     <PackageReference Include="ZXing.Net.Bindings.Windows.Compatibility" Version="0.16.12" />